For some strange reason such attacks by the Indian Sloth Bear are not rare in Bihar & Orissa states. The same species is also found in the rest of the country except the high Himalayas or desert regions, but you do not hear of such attacks. The sloth bear is a typical omnivore which prefers to dig for bugs, termites, roots etc. Yutube clips show a bear chasing away a young tiger. Large tigers are known to kill & eat sloth bear (claws found in feces). Two years ago I was charged by a mother with cub at about 25 meters but it was a mock charge to get the cub out of the way. The wildlife dept. guard yelled & screamed at it & it just ran away.